Enhance genetic variations for yield and fiber quality in cotton breeding

Authors: Zeng, Linghe

Submitted to: Book Chapter
Publication Type: Book / Chapter
Publication Acceptance Date: 8/21/2024
Publication Date: N/A
Citation: N/A

Interpretive Summary:

Technical Abstract: The genetic base in Upland cotton is narrow due to a bottleneck of gene pools occurred during cotton domestication and early selections for high yield and early maturity. Efforts of cotton breeders on enhancing genetic variation in Upland cotton have increased, especially in this century because of the limited success in Upland cotton germplasm on breaking negative associations between yield traits and fiber quality and the high demand of high fiber quality in the global market. The efforts can be categorized into a few main aspects including characterizing gene actions for predicting breeding efficiency, analyzing genotype × environmental interactions for their impact on breeding for quantitative traits, and enhancing genetic variations through introgression. The topic of gene actions and their influences in cotton breeding has been extensively reviewed previously. In this chapter, the review is mainly focused on previous studies on partitioning of genotype × environmental interactions and genotype components, amelioration of genotype × environment interactions, and genetic variation enhancement for quantitative traits including yield and fiber quality. A summary of the related past research and an identification of trends from these studies will help cotton breeders improve efficiency in selections and battling against environmental influences in cotton production.